Law Commons^™

Sleight Of Hand, Benjamin C. Zipursky

Faculty Scholarship

Thanks to Richard Posner's classic 1972 article, A Theory of Negligence Law, the Hand formula of United States. v. Carroll Towing Co. is perhaps the most central idea of many first-year torts classes today. Students learn that the meaning of negligence should be understood in terms of Judge Learned Hand's formula comparing the costs of taking precautions with the product of the likelihood of injury without those precautions and the magnitude of such injury. There is more than a little irony, however, in the superstar status of the Hand formula in negligence law. Carroll Towing is not a negligence case …